کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574999 | 1514736 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Processing of commercial purity titanium by ECAP using a 90 degrees die at room temperature
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experiments were conducted to determine whether it is feasible to process commercial purity (CP) titanium (grade 1) by equal-channel angular pressing (ECAP) at room temperature with a die having an internal angle of 90°. Billets were successfully processed through up to 4 passes using a pressing speed of 3.5 mm sâ1. These results appear to represent the first successful processing of CP-Ti at room temperature using a 90° die. Processing by ECAP through 4 passes reduced the grain size from an initial value of ~25 µm in the unprocessed condition to an equiaxed grain size of ~150 nm. The results show that the hardness and tensile strength are increased significantly after ECAP and the material exhibits excellent elongations up to ~45% to 48% in tensile testing at room temperature. The success in processing CP-Ti at room temperature with a 90° die provides opportunities for incorporating additional processing steps in order to gain further grain refinement and strength enhancement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 607, 23 June 2014, Pages 482-489
Journal: Materials Science and Engineering: A - Volume 607, 23 June 2014, Pages 482-489
نویسندگان
Xicheng Zhao, Xirong Yang, Xiaoyan Liu, Chuan Ting Wang, Yi Huang, Terence G. Langdon,